Nonclassicality of photon-modulated spin coherent states in the Holstein—Primakoff realization

doi:10.1088/1674-1056/ac40f5

中国物理B ›› 2022, Vol. 31 ›› Issue (5): 54205-054205.doi: 10.1088/1674-1056/ac40f5

Nonclassicality of photon-modulated spin coherent states in the Holstein—Primakoff realization

Xiaoyan Zhang(张晓燕)¹, Jisuo Wang(王继锁)^1,†, Lei Wang(王磊)^1,3, Xiangguo Meng(孟祥国)^2,‡, and Baolong Liang(梁宝龙)²

1 Shandong Provincial Key Laboratory of Laser Polarization and Information Technology, School of Physics and Physical Engineering, Qufu Normal University, Qufu 273165, China;
2 Shandong Provincial Key Laboratory of Optical Communication Science and Technology, School of Physical Science and Information Engineering, Liaocheng University, Liaocheng 252059, China;
3 School of Physics and Electronic Engineering, Heze University, Heze 274015, China

收稿日期:2021-10-17 修回日期:2021-11-25 发布日期:2022-04-09
通讯作者: Jisuo Wang,E-mail:jswang@qfnu.edu.cn;Xiangguo Meng,E-mail:mengxiangguo1978@sina.com E-mail:jswang@qfnu.edu.cn;mengxiangguo1978@sina.com
基金资助:
This work was supported by the National Natural Science Foundation of China (Grant No.11347026) and the Natural Science Foundation of Shandong Province,China (Grant Nos.ZR2020MA085 and ZR2020MF113).

Nonclassicality of photon-modulated spin coherent states in the Holstein—Primakoff realization

Xiaoyan Zhang(张晓燕)¹, Jisuo Wang(王继锁)^1,†, Lei Wang(王磊)^1,3, Xiangguo Meng(孟祥国)^2,‡, and Baolong Liang(梁宝龙)²

1 Shandong Provincial Key Laboratory of Laser Polarization and Information Technology, School of Physics and Physical Engineering, Qufu Normal University, Qufu 273165, China;
2 Shandong Provincial Key Laboratory of Optical Communication Science and Technology, School of Physical Science and Information Engineering, Liaocheng University, Liaocheng 252059, China;
3 School of Physics and Electronic Engineering, Heze University, Heze 274015, China

Received:2021-10-17 Revised:2021-11-25 Published:2022-04-09
Contact: Jisuo Wang,E-mail:jswang@qfnu.edu.cn;Xiangguo Meng,E-mail:mengxiangguo1978@sina.com E-mail:jswang@qfnu.edu.cn;mengxiangguo1978@sina.com
About author:2021-12-8
Supported by:
This work was supported by the National Natural Science Foundation of China (Grant No.11347026) and the Natural Science Foundation of Shandong Province,China (Grant Nos.ZR2020MA085 and ZR2020MF113).

摘要/Abstract

摘要： Two new photon-modulated spin coherent states (SCSs) are introduced by operating the spin ladder operators J_± on the ordinary SCS in the Holstein-Primakoff realization and the nonclassicality is exhibited via their photon number distribution, second-order correlation function, photocount distribution and negativity of Wigner distribution. Analytical results show that the photocount distribution is a Bernoulli distribution and the Wigner functions are only associated with two-variable Hermite polynomials. Compared with the ordinary SCS, the photon-modulated SCSs exhibit more stronger nonclassicality in certain regions of the photon modulated number k and spin number j, which means that the nonclassicality can be enhanced by selecting suitable parameters.

关键词: the photon-modulated spin coherent state, nonclassicality, photocount distribution, Wigner distribution function

Abstract: Two new photon-modulated spin coherent states (SCSs) are introduced by operating the spin ladder operators J_± on the ordinary SCS in the Holstein-Primakoff realization and the nonclassicality is exhibited via their photon number distribution, second-order correlation function, photocount distribution and negativity of Wigner distribution. Analytical results show that the photocount distribution is a Bernoulli distribution and the Wigner functions are only associated with two-variable Hermite polynomials. Compared with the ordinary SCS, the photon-modulated SCSs exhibit more stronger nonclassicality in certain regions of the photon modulated number k and spin number j, which means that the nonclassicality can be enhanced by selecting suitable parameters.

Key words: the photon-modulated spin coherent state, nonclassicality, photocount distribution, Wigner distribution function

中图分类号: (Quantum optics)

42.50.-p

03.65.-w (Quantum mechanics)

Xiaoyan Zhang(张晓燕), Jisuo Wang(王继锁), Lei Wang(王磊),Xiangguo Meng(孟祥国), and Baolong Liang(梁宝龙). Nonclassicality of photon-modulated spin coherent states in the Holstein—Primakoff realization[J]. 中国物理B, 2022, 31(5): 54205-054205.

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Nonclassicality of photon-modulated spin coherent states in the Holstein—Primakoff realization

Nonclassicality of photon-modulated spin coherent states in the Holstein—Primakoff realization

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